Finding the Fourth Proportional to 103,476,081.80, 155,214,122.70 and 71,227,454.60
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Solution
The fourth proportional to 103,476,081.80, 155,214,122.70 and 71,227,454.60 is: 106,841,181.90
Step by Step Solution
- Step 1: Write the proportion equation
103,476,081.80 : 155,214,122.70 = 71,227,454.60 : x - Step 2: Convert to fraction form
103,476,081.80/155,214,122.70 = 71,227,454.60/x - Step 3: Cross multiply
103,476,081.80x = 155,214,122.70 × 71,227,454.60 - Step 4: Simplify right side
103,476,081.80x = 11,055,506,877,893,078 - Step 5: Solve for x
x = 11,055,506,877,893,078/103,476,081.80 - Step 6: Final answer
x = 106,841,181.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.